Describe location and principal functions(s) of each of the following skin glands: sweat glands (ecrine and apocrine), scent glands, sebaceous glands, and mammary glands.

Sweat glands are highly coiled glands that occur over much of the body surface in most mammals. Their main function is heat regulation. Scent glands are found in various areas dependeing on the species. Scent gands are used for indentification, warning, and territorial markings. Sebaceous glands are associated with hair follicles but cen be found opening directly to the surface. Sebaceous glands provide oil that makes our hair and skin soft. Mammary glands are located alongside of the abdomen in the embryo. These glands provide mourishment for the young.